<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        a {
            text-decoration: none;
            color: black;
            display: block;
            width: 150px;
            height: 50px;
            background-color: red;
        }
        div {
            display: inline;
            background-color: green;
        }
        span {
            background-color: lightblue;
            display: inline-block;
            width: 150px;
            height: 50px;
        }
    </style>
</head>
<body>
<a href="#">金星</a>
<div>块级元素</div>
<div>块级元素</div>
<span>行内块元素</span>
<span>行内块元素</span>
</body>
</html>